understand & compare proportional relationships
equations of proportional relationships
Connect proportional relationships and slope
Understand y-intercept
Slope Intercept Form
100
what numbers are the orgin?
0,0
100
Is this equation proportional? y= 3x
If so what is the constant of proportionality? (K)
Yes
k=3
100
What letter is used for slope?
m
100
What is a y-intercept?
The place where a graph hits the y-axis
100
What is the equation of a line that has both a slope and a y-intercept?
y = mx + b
200
Is this graph proportional?
YES
200
Write an equation for the table given the table is proportional.
Y= 3/2 x
200
y = kx is the same as what other equation?
y = mx
200
What is the one thing the y-intercept can not be on a non-proportional graph?
(0, 0)
200
What do the letters "m" and "b" mean in the equation y = mx + b
"m" means slope
"b" stands for y-intercept
300
What is the COP/Rate of Change/Slope of the line?
5
300
Using this graph, What is the equation? 
y= 1/6x
300
Find the slope of the table:
13
300
When you are working with word problems, what is a better way to say "y-intercept"? What word makes more sense in a real-life problem?
Initial value or starting value
300
Find the equation of the line:
y = 2x - 3
400
Two trains are traveling at a constant rate. Find the rate of each train. Which train is traveling at the faster rate? Prove with unit rates.
Train A is going 25 mph
Train B is going 20 mph
Train A is faster.
400
A mixture of nuts contains 1 cup of walnuts for every 3 cups of peanuts. Write a linear equation that represents the relationship between the peanuts (x) and the walnuts (y)
y = 1/3x
400
The graph shows the proportions of blue paint and yellow paint that Briana mixes to make green paint. What is the slope of the line?
5/6
400
The equation y=5+0.5x represents the cost of getting a car wash and using the vacuum for x minutes. What is the y-intercept?
5
400
Find the equation of the line:
y = -1x + 3
500
A 16-ounce bottle of water from Store A costs $1.28. The cost in dollars ,y, of a bottle of water from Store B is represented by the equation y=0.07x, where x is the number of ounces. What is the cost per ounce of water at each store? Which store’s bottle of water costs less per ounce?
Store A: $0.08/oz
Store B: $0.07/oz
Store B is less per ounce.
500
Make an "L" graph of the equation y = 1/3x from the peanut question.
500
What does the slope of the line MEAN?
5 gallons of yellow paint for every 6 gallons of blue paint
500
What does the y-intercept MEAN?
The cost of the car wash is $5
500
Graph a line with the given equation:
y = 1/2x - 1
